Tom has just started working as an intern for a local radio station. He is responsible for managing the request line and presenting request trends to management each month. Tom uses Microsoft PowerPoint 2016 to create his presentations. As he hovers over each choice, Tom sees his slide change automatically. What Tom is experiencing is called .

1. which of the following statements are true about routers and routing on the internet. choose two answers. a. protocols ensure that a single path between two computers is established before sending packets over it. b. routers are hierarchical and the "root" router is responsible for communicating to sub-routers the best paths for them to route internet traffic. c. a packet traveling between two computers on the internet may be rerouted many times along the way or even lost or "dropped". d. routers act independently and route packets as they see fit.